Twist Bioscience Corp (TWST) executive sells 2,238 shares in tax sell-to-cover

Rhea-AI Filing Summary

Twist Bioscience Corp President and COO Patrick John Finn sold 2,238 shares of common stock on July 23, 2026 at $93.893 per share to cover tax withholding from vesting Restricted Stock Units. These mandated "sell to cover" sales were non-discretionary under the company’s equity incentive plans, leaving him with 272,566 directly held shares.

Insider Trade Summary

Net Seller: 2,238 shares

Net Sell 1 txn

Insider Finn Patrick John

Role President and COO

Sold 2,238 shs ($210K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	2,238	$93.893	$210K

Holdings After Transaction: Common Stock — 272,566 shares (Direct)

Footnotes (1)

1. F1. Represents the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of a tax withholding obligation to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person.

Key Figures

Shares sold: 2,238 shares Average sale price: $93.893 per share Shares owned after transaction: 272,566 shares

3 metrics

Shares sold 2,238 shares Common stock sale on 2026-07-23 to cover tax withholding

Average sale price $93.893 per share Price for common stock sold on 2026-07-23

Shares owned after transaction 272,566 shares Direct common stock holdings following 2026-07-23 sale

Key Terms

Restricted Stock Units, sell to cover, equity incentive plans

3 terms

Restricted Stock Units financial

"in connection with the vesting of Restricted Stock Units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

sell to cover financial

"to be funded by a "sell to cover" transaction"

Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.

equity incentive plans financial

"the Issuer's election under its equity incentive plans"

Equity incentive plans are company programs that pay employees, executives, or directors with company stock, stock options, or share units instead of or in addition to cash, aiming to align their interests with shareholders—like giving team members a stake in the house they help build. For investors this matters because such plans can motivate better company performance but also dilute existing ownership and increase reported compensation costs, so they affect future earnings, voting power, and share value.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/27/2026 - 04:05 PM Accepted by SEC EDGAR 07/27/2026 - 04:05 PM Learn about SEC filing dates

FAQ

What insider stock sale did Twist Bioscience (TWST) disclose for Patrick John Finn?

Twist Bioscience’s President and COO Patrick John Finn sold 2,238 common shares on July 23, 2026 at $93.893 per share. The sale was made solely to cover tax withholding on vesting Restricted Stock Units under the company’s equity incentive plans.

Why did Patrick John Finn sell shares of Twist Bioscience (TWST)?

The 2,238 shares were sold to cover tax withholding obligations tied to vesting Restricted Stock Units. The company’s equity incentive plans mandate a "sell to cover" arrangement, so these transactions were not discretionary trades by Finn.

How many Twist Bioscience (TWST) shares does Patrick John Finn hold after this transaction?

After selling 2,238 shares to cover taxes, Patrick John Finn directly holds 272,566 shares of Twist Bioscience common stock. This post-transaction balance reflects his continuing equity stake following the mandated sell-to-cover sale.

At what price were Patrick John Finn’s Twist Bioscience (TWST) shares sold?

The 2,238 Twist Bioscience common shares were sold at an average price of $93.893 per share. This price is reported on the transaction dated July 23, 2026 and applies to the tax-related sell-to-cover sale.

Were Patrick John Finn’s Twist Bioscience (TWST) stock sales discretionary trades?

No. The filing states the shares were sold to fund tax withholding via a mandated "sell to cover" mechanism under Twist Bioscience’s equity incentive plans. The disclosure specifies these do not represent discretionary trades by Finn.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Finn Patrick John

(Last) (First) (Middle)

C/O TWIST BIOSCIENCE CORPORATION

681 GATEWAY BLVD.

(Street)

SOUTH SAN FRANCISCO CALIFORNIA 94080

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Twist Bioscience Corp [ TWST ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/23/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/23/2026		S(1)		2,238	D	$93.893	272,566	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of a tax withholding obligation to be funded by a "sell to cover" transaction and do not represent discretionary trades by the Reporting Person.

Remarks:

	/s/ Kendra Fox, as Attorney-in-Fact for Patrick John Finn	07/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)